tests/dd/misc

   1 #!/bin/sh
   2 # Ensure dd treats `--' properly.
   3 # Also test some flag values.
   4
   5 # Copyright (C) 1999, 2004-2010 Free Software Foundation, Inc.
   6
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 if test "$VERBOSE" = yes; then
  21   set -x
  22   dd --version
  23 fi
  24
  25 . $srcdir/test-lib.sh
  26
  27 tmp_in=dd-in.$$
  28 tmp_in2=dd-in2.$$
  29 tmp_sym=dd-sym.$$
  30 tmp_out=dd-out.$$
  31
  32 warn=0
  33 echo data > $tmp_in || framework_failure
  34 ln $tmp_in $tmp_in2 || framework_failure
  35 ln -s $tmp_in $tmp_sym || framework_failure
  36
  37 dd if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
  38 compare $tmp_in $tmp_out || fail=1
  39
  40 rm $tmp_out
  41 dd -- if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
  42 compare $tmp_in $tmp_out || fail=1
  43
  44 if dd oflag=append if=$tmp_in of=$tmp_out 2> /dev/null; then
  45   compare $tmp_in $tmp_out || fail=1
  46 fi
  47
  48 case $(cat /dev/stdin <$tmp_in 2>/dev/null) in
  49 (data)
  50   rm -f $tmp_out
  51   dd if=/dev/stdin of=$tmp_out <$tmp_in || fail=1
  52   compare $tmp_in $tmp_out || fail=1
  53 esac
  54
  55 if dd iflag=nofollow if=$tmp_in count=0 2> /dev/null; then
  56   dd iflag=nofollow if=$tmp_sym count=0 2> /dev/null && fail=1
  57 fi
  58
  59 if dd iflag=directory if=. count=0 2> /dev/null; then
  60   dd iflag=directory count=0 <. 2> /dev/null || fail=1
  61   dd iflag=directory count=0 <$tmp_in 2> /dev/null && fail=1
  62 fi
  63
  64 old_ls=`ls -u --full-time $tmp_in`
  65 sleep 1
  66 if dd iflag=noatime if=$tmp_in of=$tmp_out 2> /dev/null; then
  67   new_ls=`ls -u --full-time $tmp_in`
  68   if test "x$old_ls" != "x$new_ls"; then
  69     cat >&2 <<EOF
  70 =================================================================
  71 $0: WARNING!!!
  72 This operating system has the O_NOATIME file status flag,
  73 but it is silently ignored in some cases.
  74 Therefore, dd options like iflag=noatime may be silently ignored.
  75 =================================================================
  76 EOF
  77     warn=77
  78   fi
  79 fi
  80
  81 if dd oflag=nolinks if=$tmp_in of=$tmp_out 2> /dev/null; then
  82   dd iflag=nolinks if=$tmp_in > /dev/null 2>&1 && fail=1
  83   dd iflag=nolinks < $tmp_in > /dev/null 2>&1 && fail=1
  84   dd oflag=nolinks < $tmp_in > $tmp_out 2>&1 || fail=1
  85 fi
  86
  87 outbytes=`echo x | dd bs=3 ibs=10 obs=10 conv=sync 2>/dev/null | wc -c`
  88 test "$outbytes" -eq 3 || fail=1
  89
  90 # A delay is required to trigger a failure.
  91 # There might be some missed failures but it's unlikely.
  92 (echo a; sleep .1; echo b) \
  93   | env LC_ALL=C dd bs=4 status=noxfer iflag=fullblock >out 2>err || fail=1
  94 printf 'a\nb\n' > out_ok || framework_failure
  95 echo "1+0 records in
  96 1+0 records out" > err_ok || framework_failure
  97 compare out_ok out || fail=1
  98 compare err_ok err || fail=1
  99
 100 test $fail -eq 0 && fail=$warn
 101
 102 Exit $fail